NEC N8120-011F, User Manual

Page: 42 / 166

22 About US40a
Battery Charge Procedure
NOTES:
„
Do not remove the battery pack from US40a while the battery is
being charged. Failure to follow this may cause short-circuit and/or
poor contact.
„
The battery just purchased or left for a long period may not be
operated at all, be operated only for a short period or show the
remaining battery level incorrectly. Any battery in such status
should be charged fully before it can be used.
Battery Charge Procedure
If you connect the AC adapter to US40a with the battery pack installed and to an AC outlet, then
battery charge is automatically started.
The battery is charged while the power of US40a is ON.
NOTE:
The chargeable battery level varies depending on the ambient
temperature. Battery charging may be interrupted at a higher
temperature. It is recommended to charge the battery within the ambient
temperature range between 18ºC and 28ºC.
Checking Battery Charge Status with Battery Status LED
You can check the battery charge status with the Battery Status LED.
Checking Remaining Battery Level
You can check the remaining battery level in the following steps:
1.
Click [Start] - [Control Panel] - [Power Options].
The [Power Options Properties] dialog box appears.
2.
Click the [Power Meter] tab.